Improvement in mode of constructing ordnance



UNITED STATES PATENT @FrieE,

DAVID T. YEAKEL, OF LAFAYE PE, INDIANA.

IMPROVEMENT IN MODE OF CONSTRUCTlNG ORDNAN-CE.

Specification forming part of Letters latent No. 35,1124, dated April Ed, 1862.

To all whom, it 11mg cancer/z e it known that I, DAVID 'l. TUAKEL, ot' l.::t'a vette, eountiy ol' '.lip )eeanoe and btateot' tndiana, have invented a new and im u'oved mode of making eannon and other ordnanee, and likewise hollow and solid eylinders lor heavy shati'iing, out of wrought-iron plate, or steel plate, or both combined; and lilo hereby declare thatthe lfi'illowing is a toll and exaet description thereol', ret'ere'neo being had to the aeeompanying drawing, and to the letters ol refer-(nice marked thereon.

()ue ot' my modes eonsists in rolling and welding at the same time a plate or sheet ot' iron or steel, .ll ll ll, (see drawing) to and around a central mandrel ol' wrought-iron r steel, A (1, thereby eonsolidatingthe whole by the .-ressure otj rollersnrr the impaet ol' hammer or hannners at a welding heat: or the plate or sheet or several ot' them may be lirst wound and welded afterward. The mandrel A a should be of a less diameter than the desired bore of gun-barrel or shal't-oylinder, it hollow, that the boring may remove all of it to the inspeeted metal I ll ll.

My second mode (-onsists of using a eold mandrel of less diameter than desired bore, and to roll and weld upon it the plate of iron or steel at? a welding heat until the desired t'orm ot forging is aeeomplished, and then to remove the mamlrel and to bore, am, and turn in the same way as is now pursued with east guns and cylinders. tlther modes will readily suggest themselves. The plate used should be of sullieient .limgt-h, when used in one piece, toproduee when rolled and welded the barrel or eylinder of the desired thiele ness or diameter before turning, and ot' a. breadth six to twelve inehes wider than the desired length of barrel or eylinder. 'lhis sheet or plate of iron or steel may he used of a nnit'orm thickness, or it may be tapered from one edge olf its breadth to the other, so as to produce when rolled and welded the approxinu'ite shape of barrel bel'ore turning. it used of a uniform thickness, the rolling and welding must be continued until a sntlieient diameter is obtained at the breeeh.

If it should be desired to construct abarrel. or cylinder of the same or different qualities of metal presenting the fiber of the metal in aerueial form, my process offer-S110 obstacle. In that ease a plate of determinate length would first be rolled and welded to or n the mandrel, presenting the iiber transversely to the mandrel. 'llu-n a plate would be rolled and welded presenting its tiber longitudinally, and so eimtiniu'rd until forging was done.

lit' the gun is to be a muzzie lnzuliuggun,it may be bored as gunwastings now are; but I should preterit breeelepin of a superii'nmetal serewed into the bore at the breech.

'lhe applieat ion ot' my mode of makinghollow eylinders t'or heavy shattiing obvious.

Shat'ting is required l'or large elass steamers of greatest possible strength, and as generally used in the torn: oi easting or solid forglug are ot immense and ineonveniehtweight, rmidering it impossible l'or them to be earried in duplieate lorm; but by my process they eould be made in the hollow form very mueh lighter and in seetions, one or two (Inplieates ot' whieh. it earried in ballast-{could readily, in ease of aia-ident lo the shalt, be adjusted at sea. elfv this mode it will be seen that the most earel'uliyaamsolidated plates of iron or steel are rolled and weuh-d together in one eontinnons length, thereby produeing aquality yiza, nnil'orm eonsolidat ion ot'inelal and a t'orm ol' barrel eomposed ol' eoi-ieentrie welded t'olds-eapable ot' oll'ering a resistaneo to the explosive loree ot powder, whieh ean not be obtained in any other way.

The olrieetions urged against many other plans used to prodnee a st ronglmrrel torordna-nee-.-viz., impert'eet welding and the great expense ot the same- -do not apply to this mode, for the welding is unilorm and the expense will not greatly exeeed the rolled iron or steel in plate.

What I claim, as my invention, and desire to seeure by Letters Patent, is

The use ot. plate or sheet iron orsteel in the nianut'aet'ure or eoustruetion of large iron or steel eylinders by winding the plate or sheet iron or steel, the plate or sheet beingin width equal to the desired length of the eylinder, around a eentral niamlrel until by repeated continuous layers the intended size is produced, and after t he tirst layer around the eentral mandrel, (which may or may not be welded to the mandrel) each part of the plate or sheet of iron or steel sowoundfto be Welded to the part immediately under it? in. 'r. YE'AKEL.

.Attiest: Y

' Jena s. llomqmosiumn,

Jon We. Nous. 

